“Navigator will withdraw its current application with the intent to reinitiate Illinois permitting, if appropriate, when Navigator’s full evaluation is complete,” the company said in a prepared statement. A company spokesperson declined to comment further. Navigator had previously withdrawn its first application in Illinois and reapplied because of a route adjustment. Navigator proposes to transport captured carbon dioxide from ethanol plants and other facilities in five states to Illinois for underground sequestration and other commercial uses. Most of those sites are in Iowa. Opponents of the project say it poses a safety risk to residents and livestock, it would irreparably damage farmland, and that the use of eminent domain to build it is improper because it doesn’t serve the public.

The proposal is one of three in Iowa. Summit Carbon Solutions is near the end of its permit process with the Iowa Utilities Board. An evidentiary hearing is pending and expected to resume for days in November. The company hopes to have a decision on its Iowa permit by the end of the year. Summit was also denied a permit in South Dakota but plans to reapply. North Dakota utility regulators also denied Summit a permit but have agreed to reconsider the application. The Summit pipeline would carry carbon dioxide emissions from more than 30 ethanol plants in Iowa, Minnesota, Nebraska, North Dakota and South Dakota. The emissions would be buried in North Dakota.

Wolf Carbon Solutions wants to build a much smaller system in eastern Iowa, but the IUB has not yet set a procedural schedule to guide the rest of its permit process.